← Back to O'Fallon snapshot
City snapshotLive data for O'Fallon, IL
O'Fallon, IL

Live weather

Current conditions near O'Fallon, IL

Updated recently (open-meteo)

Temp

69°

🌦️Drizzle

Feels like

75°

Feels-like temp

Humidity

96%

Relative

Wind

3 mph

10 m avg

Pressure

1015 mb

Sea-level

Rain

1 mm

Clouds 94%

Next few hours

🌦️6 AM

69°

61% rain

🌦️7 AM

70°

79% rain

☁️8 AM

71°

66% rain

☁️9 AM

71°

42% rain

🌦️10 AM

72°

41% rain

☁️11 AM

75°

53% rain

Next few days

🌧️Fri

81° / 69°

79% rain

⛈️Sat

86° / 71°

32% rain

⛈️Sun

95° / 71°

25% rain

⛈️Mon

98° / 74°

0% rain

⛈️Tue

96° / 74°

1% rain

⛈️Wed

95° / 77°

2% rain

⛈️Thu

96° / 71°

5% rain

Live weather alerts

Active NWS advisories near O'Fallon, IL

1 alerts

Flood Watch

Effective local time

Flood Watch issued June 26 at 3:30AM CDT until June 26 at 7:00PM CDT by NWS St Louis MO

Greene; Macoupin; Montgomery; Bond; Fayette; Clinton; Marion; Washington; Randolph; Pike; Calhoun; Jersey; Madison; St. Clair; Monroe; Pike; Boone; Audrain; Moniteau; Cole; Osage; Callaway; Montgomery; Lincoln; Gasconade; Warren; St. Charles; Franklin; St. Louis; St. Louis City; Jefferson; Crawford; Washington; St. Francois; Ste. Genevieve; Iron; Madison; Reynolds

Source: NWS alerts feed.

Get your home's score

Powered by NOAA, NHC, FEMA, USGS, and NSSL data. Updated every 5–40 minutes in the full product. Demo content only — not for official warning decisions.

Protect your home before the next storm

Turn today’s risk into a checklist for your home.

Home insurance quotes

Compare storm-friendly coverage options for your address.

Check rates

Roof & window protection

Time inspections and upgrades around your local risk season.

Find pros

Emergency prep essentials guide

Build a storm kit and action checklist in 30 minutes.

Open guide

Live hazard map

Radar, alerts, systems, SPC, gauges · O'Fallon, IL
Map loads when this section is in view.

Toggle live overlays with the toolbar to focus on current radar, alerts, and outlooks.